It’s 100 daily interacting, which is much more than 100 subscribers. And Reddit doesn’t have daily users statistics so you can’t really know how many of those 700k are still using the site. Some might have not even logged for the past 14 years. I’d say actual daily users are less than 10k, maybe not even 2/3k looking at upvotes.
The statistics are not comparable, but as long as a community managed to form in here I’d say it’s still a success.